Destin d'une minorite (Strasbourg: Librairie lstra, 1981), 27; Rene Gerber, "Les Anabaptistes a Strasbourg entre 1536 et 1552," in Bibliotheca Dissidentium: Scripta et Studia, No.
The algorithms used to extract the vector field fall into two main categories: LSTRA (Least-Squares Theta Rho Analysis) and RFTRA (Resistant Fit Theta Rho Analysis).